Margo exercises

This section contains three exercises meant to accompany Mochi tutorials. These tutorials focus on using the C language, with the Margo library. They revolve around the development of a phonebook microservice, i.e. a service that associates names (null-terminated strings) with phone numbers (which will be represented as uint64_t values).

The three exercises are relatively independent of each other, though we recommend completing each of them to get a good understanding of Margo and Mochi in general.